We chose Western COOP because it's located on one of the main streets (Euljiro) in the sleepless Dongdaemun area, fairly close to the subway station (Dongdaemun History & Culture Park), the Airport Limousine Bus (6001) makes stops right in front of it, and the rooms look simple and clean, and the prices seem reasonable.
The hotel storefront looks like a night club entrance if you ask me. :p
Our room itself if not super big, but plenty usable space for us. Walking in the door there's the bathroom on the left, and a office/kitchenette area up front, and behind the half wall it's the bedroom area.
The "office" is on the left.
John and I left our luggage in the office area, with our daily itineraries and maps spreading out on the desks.
And the kitchenette is on the right.
We didn't cook anything during this stay. We did store the fun drinks and snacks that we bought on the counters and in the fridge. Oh, and the last night we were there we bought Korean-style fried chicken and ate it in the kitchen!
The bedroom area, which also had a TV on the other side of the wall.
When we were booking our flight+room on Expedia we could choose either one queen-sized beds, or 2 twins. After reading up on the measurements of beds we decided 2 twin beds sounded great, plus if we wanted to "join" the beds the width will be bigger than a queen. hehe.
Our stay was nice. Western COOP Residence met my expectations: simple, clean, conveniently located, and the staff at the front desk was friendly. I totally enjoyed my stay and will be more than happy to stay here again next time I'm in Seoul.
Oh, and not too far up the street there was Western COOP's sister hotel Euljiro COOP, which I read would be a good choice as well. It was a couple years older than Western COOP, but has all the "goodness" of Western COOP, plus it's even closer to the Subway entrance!